<template>
	<div>
		<el-breadcrumb separator-class="el-icon-arrow-right">
			<el-breadcrumb-item :to="{ path: '/Home' }">首页</el-breadcrumb-item>
			<el-breadcrumb-item>权限管理</el-breadcrumb-item>
			<el-breadcrumb-item>角色列表</el-breadcrumb-item>
		</el-breadcrumb>
		<el-card>
			<el-row>
				<el-col>
					<el-button type="primary" @click="dialogVisible = true">
						添加用户
					</el-button>
				</el-col>
			</el-row>
			<el-table :data="rolesList" border stripe>
				<!-- 展开列表 -->
				<el-table-column type="expand">
					<template slot-scope="scope">
						<el-row
							:class="['bdBottom', i1 == 0 ? 'bdTop' : '', 'vcenter']"
							v-for="(item1, i1) in scope.row.children"
							:key="item1.id"
						>
							<el-col :span="5">
								<el-tag
									closable
									@close="removeRightById(scope.row, item1.id)"
									>{{ item1.authName }}</el-tag
								>
								<i class="el-icon-caret-right"></i>
							</el-col>
							<el-col :span="19">
								<el-row
									:class="['bdTop', i2 == 0 ? '' : 'bdTop', 'vcenter']"
									v-for="(item2, i2) in item1.children"
									:key="item2.id"
								>
									<el-col :span="6">
										<el-tag
											type="success"
											closable
											@close="removeRightById(scope.row, item2.id)"
											>{{ item2.authName }}</el-tag
										>
										<i class="el-icon-caret-right"></i>
									</el-col>
									<el-col :span="18">
										<el-tag
											v-for="item3 in item2.children"
											:key="item3.id"
											type="warning"
											closable
											@close="removeRightById(scope.row, item3.id)"
											>{{ item3.authName }}</el-tag
										>
									</el-col>
								</el-row>
							</el-col>
						</el-row>
					</template>
				</el-table-column>
				<el-table-column label="#" type="index"></el-table-column>
				<el-table-column label="角色名称" prop="roleName"></el-table-column>
				<el-table-column label="角色描述" prop="roleDesc"></el-table-column>
				<el-table-column label="操作" width="300px">
					<template slot-scope="scope">
						<!-- 修改按钮 -->
						<el-button
							type="primary"
							icon="el-icon-edit"
							size="mini"
							@click="showEditDialog(scope.row.id)"
							>编辑</el-button
						>
						<!-- 删除按钮 -->
						<el-button
							type="danger"
							icon="el-icon-delete"
							size="mini"
							@click="removeRoleById(scope.row.id)"
							>删除</el-button
						>
						<!-- 分配按钮 -->
						<el-tooltip disabled>
							<el-button
								type="warning"
								icon="el-icon-setting"
								size="mini"
								@click="showSetRightDialog(scope.row)"
								>分配权限</el-button
							>
						</el-tooltip>
					</template>
				</el-table-column>
			</el-table>
			<!-- 添加角色对话框 -->
			<el-dialog
				:visible.sync="dialogVisible"
				title="添加角色"
				width="50%"
				@close="addDialogClosed"
			>
				<el-form
					:model="addFrom"
					:rules="addFormRules"
					ref="addFromRef"
					label-width="80px"
					><el-form-item label="角色名称" prop="roleName"
						><el-input v-model="addFrom.roleName"></el-input
					></el-form-item>
					<el-form-item label="角色描述" prop="roleDesc"
						><el-input v-model="addFrom.roleDesc"></el-input
					></el-form-item>
				</el-form>
				<span slot="footer" class="dialog-footer">
					<el-button type="primary" @click="addRole">确 定</el-button>
					<el-button @click="dialogVisible = false">取 消</el-button>
				</span>
			</el-dialog>
			<!-- 修改用户对话框 -->
			<el-dialog
				title="修改角色"
				:visible.sync="editDialogVisible"
				width="50%"
				@close="editDialogClosed"
			>
				<el-form
					:model="editForm"
					:rules="editFormRules"
					ref="editFormRef"
					label-width="70px"
					><el-form-item label="名称"
						><el-input v-model="editForm.roleName" disabled></el-input
					></el-form-item>
					<el-form-item label="描述" prop="roleDesc"
						><el-input v-model="editForm.roleDesc"></el-input
					></el-form-item>
				</el-form>
				<span slot="footer">
					<el-button type="primary" @click="editRoleInfo">确 定</el-button>
					<el-button @click="editDialogVisible = false">取 消</el-button>
				</span>
			</el-dialog>
			<!-- 分配权限 -->
			<el-dialog
				title="分配权限"
				:visible.sync="setRightDiaLogVisible"
				width="50%"
				@close="setRightDialogClosed"
			>
				<el-tree
					:data="rightsList"
					:props="treeProps"
					show-checkbox
					default-expand-all
					node-key="id"
					:default-checked-keys="defKeys"
					ref="treeRef"
				></el-tree>
				<span slot="footer" class="dialog-footer">
					<el-button type="primary" @click="allotRights"
						>确 定</el-button
					>
					<el-button @click="setRightDiaLogVisible = false">取 消</el-button>
				</span>
			</el-dialog>
		</el-card>
	</div>
</template>
<script>
export default {
	data() {
		return {
			rolesList: [],
			rightsList: [],
			treeProps: {
				label: 'authName',
				children: 'children',
			},
			defKeys: [],
			roleId: '',
			dialogVisible: false,
			addFrom: {
				roleName: '',
				roleDesc: '',
			},
			addFormRules: {
				roleName: [
					{
						required: true,
						message: '请输入角色名',
						trigger: 'blur',
					},
				],
				roleDesc: [
					{
						required: true,
						message: '请输入角色描述',
						trigger: 'blur',
					},
				],
			},
			editFormRules: {
				roleDesc: [
					{
						required: true,
						message: '请输入角色描述',
						trigger: 'blur',
					},
				],
			},
			editDialogVisible: false,
			editForm: {},
			setRightDiaLogVisible: false,
		}
	},
	created() {
		this.getRolesList()
	},
	methods: {
		async getRolesList() {
			const { data: res } = await this.$http.get('roles')
			if (res.meta.status != 200) {
				return this.$message.error('获取角色列表失败')
			}
			this.rolesList = res.data
		},
		addDialogClosed() {
			this.$refs.addFromRef.resetFields()
		},
		editDialogClosed() {
			this.$refs.editFormRef.resetFields()
		},
		//添加角色
		addRole() {
			this.$refs.addFromRef.validate(async (valid) => {
				if (!valid) {
					return
				}
				const { data: res } = await this.$http.post('roles', this.addFrom)
				if (res.meta.status != 201) {
					return this.$message.error('添加角色失败')
				}
				this.dialogVisible = false
				this.getRolesList()
				this.$message.success('添加角色成功')
			})
		},
		async showEditDialog(id) {
			const { data: res } = await this.$http.get('roles/' + id)
			if (res.meta.status != 200) {
				return this.$message.error('查询角色信息失败')
			}
			this.editForm = res.data
			this.editDialogVisible = true
		},
		//修改角色
		editRoleInfo() {
			this.$refs.editFormRef.validate(async (valid) => {
				if (!valid) {
					return
				}
				const { data: res } = await this.$http.put(
					'roles/' + this.editForm.roleId,
					{
						roleName: this.editForm.roleName,
						roleDesc: this.editForm.roleDesc,
					}
				)
				if (res.meta.status != 200) {
					return this.$message.error('编辑失败')
				}
				this.editDialogVisible = false
				this.getRolesList()
				this.$message.success('编辑成功')
			})
		},
		//删除角色
		async removeRoleById(id) {
			const confirmResult = await this.$confirm(
				'此操作将永久删除该角色, 是否继续?',
				'提示',
				{
					confirmButtonText: '确定',
					cancelButtonText: '取消',
					type: 'warning',
				}
			).catch((err) => err)
			if (confirmResult != 'confirm') {
				return this.$message.info('已取消删除')
			}
			const { data: res } = await this.$http.delete('roles/' + id)
			if (res.meta.status != 200) {
				return this.$message.error('删除角色失败')
			}
			this.getRolesList()
			this.$message.success('删除成功')
		},
		//删除权限标签
		async removeRightById(role, rightId) {
			const confirmResult = await this.$confirm(
				'此操作将永久删除该文件, 是否继续?',
				'提示',
				{
					confirmButtonText: '确定',
					cancelButtonText: '取消',
					type: 'warning',
				}
			).catch((err) => err)
			if (confirmResult != 'confirm') {
				return this.$message.info('已取消删除')
			}
			const { data: res } = await this.$http.delete(
				`roles/${role.id}/rights/${rightId}`
			)
			if (res.meta.status != 200) {
				return this.$message.error('删除权限失败')
			}
			role.children = res.data
		},
		//分配权限
		async showSetRightDialog(role) {
			this.roleId = role.id
			const { data: res } = await this.$http.get('rights/tree')
			if (res.meta.status != 200) {
				return this.$message.error('获取权限信息失败')
			}
			this.rightsList = res.data
			this.getLeafKeys(role, this.defKeys)
			this.setRightDiaLogVisible = true
		},
		//递归获取角色三级权限id
		getLeafKeys(node, arr) {
			if(!node.children) {
				return arr.push(node.id)
			}
			node.children.forEach(item =>
				this.getLeafKeys(item, arr))
		},
		setRightDialogClosed() {
			this.defKeys = []
		},
		// 点击分配权限
		async allotRights() {
			const keys = [
				...this.$refs.treeRef.getCheckedKeys(),
				...this.$refs.treeRef.getHalfCheckedKeys()
			]
			const idStr = keys.join(',')
			const {data:res} = await this.$http.post(`roles/${this.roleId}/rights`, {rids: idStr})
			if(res.meta.status != 200) {
				return this.$message.error('分配权限失败')
			}
			this.getRolesList()
			this.setRightDiaLogVisible = false
		}
	},
}
</script>
<style lang="less" scoped>
.el-tag {
	margin: 7px;
}
.bdTop {
	border-top: 1px solid #eee;
}
.bdBottom {
	border-bottom: 1px solid rgb(245, 242, 242);
}
.vcenter {
	display: flex;
	align-items: center;
}
</style>
